No material at all on packed disk primitive if polygons have override attribute (example file inside)

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Hello!
What i do:
I assign materials on object
Save in file as bgeo.sc
Read file as packed disk primitive
And without overrides everything works great, but polygons with override attribute on render have no materials at all!
I tried many ways, including renderstate, but i didn't find solution that works in my case.
Ofcourse i may did somethong wrong, since i am not sure that i understand how renderstate works.
Thank you!